line period
81World line — In physics, the world line of an object is the unique path of that object as it travels through 4 dimensional spacetime.The concept of world line is distinguished from the concept of orbit or trajectory (such as an orbit in space or a trajectory… …
82Sandringham railway line, Melbourne — VictorianRailwayLineInfobox type = mel name = Sandringham yearcommenced = 1857 yearcompleted = 1859 yearclosed = fate = lengthkm = stations = tracks = Double track users = Connex Melbourne servicepattern = Stopping all stations RollingStock =… …
83Landsker Line — The Landsker Line is a term commonly used for the boundary between the Welsh speaking and English speaking areas in southwest Wales. It has existed for many centuries.During the 11th and 12th centuries both invaders and defenders built more than… …
84Fall River Line — The Fall River Line was a combination steamboat and railroad connection between New York City and Boston that operated between 1847 and 1937. It consisted of a railroad journey between Boston and Fall River, Massachusetts, where passengers would… …
85Polish Coal Trunk-Line — The Coal Trunk Line ( pl. Magistrala Weglowa) is one of the most important rail connections in Poland.It crosses the central part of the country, from the coal mines and steelworks of Upper Silesia in the South to the Baltic Sea port of Gdynia in …
86List of ships of the line of the Royal Navy — This is a list of ships of the line of the Royal Navy of England, and later (from 1707) of Great Britain, and the United Kingdom. The list dates from 1660, the year in which the Royal Navy came into being after the restoration of the monarchy… …
87Doncaster railway line, Melbourne — The Doncaster railway line is a proposed suburban railway in the eastern suburbs of Melbourne, Victoria, Australia. Connecting to the existing Melbourne suburban railway network at Victoria Park station on the Epping and Hurstbridge lines; the… …
88Nuclear drip line — In nuclear physics, the boundaries for nuclear particle stability are conceptualized as drip lines. The nuclear landscape is understood by plotting boxes, each of which represents a unique nuclear species, on a graph with the number of neutrons… …
89Front Line Assembly — Infobox musical artist Name = Front Line Assembly Img capt = Img size = Background = group or band Origin = Vancouver, British Columbia, Canada Genre = Post industrial EBM Industrial metal Electronica Industrial Electro industrial Alternative… …
90Hydrogen line — For hydrogen lines in general, see Hydrogen spectral series. The hydrogen line, 21 centimeter line or HI line refers to the electromagnetic radiation spectral line that is created by a change in the energy state of neutral hydrogen atoms. This… …
